Measure uasync CPU load and display it in desktop and Android GUIs

Sample thread CPU usage without waking idle loops, expose a one-second moving average, and refresh compact GUI indicators at 3 Hz while visible on Android. Add load and bridge regression coverage, streaming notes, and task list cleanup.

tools/chatgui/tests/test_message_events.cpp

@@ -1,8 +1,10 @@
 /* Формат канального события: live/history сохраняются при передаче в GUI, битые события отбрасываются. */
 #include "../transport/gui_bridge.h"
 #include "../../../lib/debug_config.h"
+#include "../../../src/chat/chat_event.h"
 #include <QtTest>
 #include <cstring>
+#include <thread>
 
 struct ReceivedMessage {
     QString channel;
@@ -11,6 +13,13 @@ struct ReceivedMessage {
     bool guiThread;
 };
 static QList<ReceivedMessage> received;
+static QList<int> cpuLoads;
+static bool cpuOnGuiThread = true;
+
+static void cpu_received(int percent) {
+    cpuLoads.append(percent);
+    cpuOnGuiThread &= QThread::currentThread() == qApp->thread();
+}
 
 static void message_received(const char* channel, int length, uint64_t author, int initial_sync) {
     received.append({QString::fromUtf8(channel, length), author, initial_sync != 0, QThread::currentThread() == qApp->thread()});
@@ -39,7 +48,7 @@ private slots:
         gui_bridge_init();
         gui_bridge_set_msg_received_cb(message_received);
     }
-    void cleanupTestCase() { gui_bridge_set_msg_received_cb(nullptr); }
+    void cleanupTestCase() { gui_bridge_set_msg_received_cb(nullptr); gui_bridge_set_cpu_load_cb(nullptr); }
     void init() { received.clear(); }
 
     void liveAndHistory() {
@@ -69,6 +78,26 @@ private slots:
         QTest::qWait(100);
         QVERIFY(received.isEmpty());
     }
+
+    void cpuLoadDeliveredToGuiThread() {
+        cpuLoads.clear(); cpuOnGuiThread = true;
+        gui_bridge_set_cpu_load_cb(cpu_received);
+        std::thread worker([] {
+            const uint8_t samples[][2] = {{1, 0}, {1, 50}, {1, 100}, {0, 90}, {1, 101}};
+            for (const auto& sample : samples) gui_bridge_post(CHAT_EVT_CPU_LOAD, sample, sizeof(sample));
+            gui_bridge_post(CHAT_EVT_CPU_LOAD, nullptr, 0);
+        });
+        worker.join();
+        QVERIFY(cpuLoads.isEmpty()); // Worker не вызывает UI напрямую.
+        QTRY_COMPARE(cpuLoads.size(), 6);
+        QCOMPARE(cpuLoads, QList<int>({0, 50, 100, 0, 0, 0}));
+        QVERIFY(cpuOnGuiThread);
+        gui_bridge_set_cpu_load_cb(nullptr);
+        const uint8_t sample[] = {1, 75};
+        gui_bridge_post(CHAT_EVT_CPU_LOAD, sample, sizeof(sample));
+        QCoreApplication::processEvents();
+        QCOMPARE(cpuLoads.size(), 6);
+    }
 };
 
 QTEST_MAIN(MessageEventTest)